Sex at Dawn

Case of the Female Orgasm, The (Lloyd), 342n

casual sexuality, 6, 9-10, 69, 93, 120, 137, 179, 302

of Mosuo, 127-31

Catholic Church, 3, 157, 281, 306-7 Caton, Hiram, 320n Caucasians, 241

Central America, 99-100, 253 Cernunnos, 341n cervical canal, 234 cervix, 265, 266

Chagnon, Napoleon, 183, 194-97, 334n

Chamberlain, Wilt, 218

Chapin, Henry, 111

Cherlin, Andrew J., 41

Chernela, Janet, 108

Chesterton, G. K., 19, 134

child abuse, 3, 38, 281, 283, 284-88

child care, 6, 94, 105-6, 128, 149, 179

children, 99, 101, 105-12, 148, 162, 306, 310

divorce and, 300

Harris lines in, 173

illegitimate, 322n

immunity of, 275, 276

see also infanticide; infant mortality; paternity certainty; pregnancy

Chile, 327n

chimpanzees, 61-76, 62, 70, 191, 216-20, 224, 246, 258, 320n, 336n, 337n

body-size dimorphism in, 216-19

bonobos compared with, 69-72, 77-78, 97, 101

copulation duration in, 236, 236

female sexual capacity of, 12, 69, 239, 268

food sharing of, 67, 70

humans compared with, 1, 61-65, 67, 68, 73, 77-78, 84, 225, 234, 240, 242, 243, 245-46, 260, 263, 332n

multimale-multifemale mating

systems of, 45, 66

orgasm in, 263, 342n

penis of, 235, 236

separation of bonobos from, 62, 74, 318n sperm competition and, 230 swellings of, 260, 261

testicles of, 10, 220, 223, 225, 226-27, 234, 240

violence and war of, 64-65, 67-70, 186-90, 193, 197-98, 332n-33n

China, 126-31, 191, 241, 344n

abortions in, 335n

infanticide in, 204

Chivers, Meredith, 272-73, 278

Christianity, 97, 157, 164, 321n

chromosomes, 238, 239

circumcision, 286-87

civilization, 181, 209, 328n

masturbation and, 249

poverty and, 161, 163

clan affiliations, 108

“classic explanation” (Fisher), 59, 60

climate change, 191, 328n

clitorectomies, 250-51

clitoris, 140, 250-52, 287, 340n-41n

Cochran, Gregory, 226 Cohen, Sheldon, 208 Colapinto, John, 121 Colbert, Stephen T., 269 colds, 206, 208

college students, as research subjects, 142-43

Colombo, Matteo Realdo, 251-52

Columbus, Christopher, 207

commitment, 23, 57, 128

communism, 171-72

community, 8, 162, 167, 171, 212, 310

meme and, 166

companionship, 2, 31, 81

competition, 66, 158, 162, 180, 188, 327n-28n

female, 55

male, 42, 43, 55, 76, 101, 133, 216-22, 225, 235 sperm, see sperm competition

Comstock, Anthony, 287-88 conception, 90-91, 96, 262, 266 condoms, 240-41, 262, 267, 283 confirmation bias, 117

Congo, Democratic Republic of (formerly Zaire), 71

Conjugal Lewdness (Defoe), 122

consortship, 116

Constant Battles (Le Blanc), 23

continual responsiveness, 101

Cook, James, 95

Coolidge, Calvin, 288-89

Coolidge effect, 289-93, 297

cooperation, 70, 188, 223